package com.lz.service.smsmail.mail;

import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;

import org.apache.commons.lang.exception.ExceptionUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 邮件发送器
 */
public class SimpleMailSender {
	
	private static final Logger LOG = LoggerFactory.getLogger(SimpleMailSender.class);
	/**
	 * 以文本格式发送邮件
	 * @param mailInfo 待发送的邮件的信息
	 */
	public boolean sendTextMail(MailSenderInfo mailInfo) {
		// 判断是否需要身份认证
		MyAuthenticator authenticator = null;
		Properties pro = mailInfo.getProperties();
		//设置超时时间
		pro.put("mail.smtp.connectiontimeout", "10000");  
		pro.put("mail.smtp.timeout", "10000");   
		if (mailInfo.isValidate()) {
			// 如果需要身份认证，则创建一个密码验证器
			authenticator = new MyAuthenticator(mailInfo.getUserName(),
					mailInfo.getPassword());
		}
		// 根据邮件会话属性和密码验证器构造一个发送邮件的session
		Session sendMailSession = Session
				.getDefaultInstance(pro, authenticator);
		try {
			// 根据session创建一个邮件消息
			Message mailMessage = new MimeMessage(sendMailSession);
			// 创建邮件发送者地址
			Address from = new InternetAddress(mailInfo.getFromAddress());
			// 设置邮件消息的发送者
			mailMessage.setFrom(from);
			// 创建邮件的接收者地址，并设置到邮件消息中
			String toAddress = mailInfo.getToAddress();
			String[] toAddressArray = toAddress.split(",");
			if(toAddressArray.length > 0) {
				Address[] toAddresses = new InternetAddress[toAddressArray.length];
				for (int i = 0; i < toAddresses.length; i++) {
					toAddresses[i] = new InternetAddress(toAddressArray[i]);
				}
				mailMessage.setRecipients(Message.RecipientType.TO, toAddresses);
				// 设置邮件消息的主题
				mailMessage.setSubject(mailInfo.getSubject());
				// 设置邮件消息发送的时间
				mailMessage.setSentDate(new Date());
				// 设置邮件消息的主要内容
				String mailContent = mailInfo.getContent();
				mailMessage.setText(mailContent);
				// 发送邮件
				Transport.send(mailMessage);
				return true;
			}
		} catch (Exception ex) {
			ex.printStackTrace();
			LOG.error("Exception={}", ExceptionUtils.getFullStackTrace(ex));
		}
		return false;
	}

	/**
	 * 以HTML格式发送邮件
	 * @param mailInfo 待发送的邮件信息
	 */
	public  boolean sendHtmlMail(MailSenderInfo mailInfo) {
		// 判断是否需要身份认证
		MyAuthenticator authenticator = null;
		Properties pro = mailInfo.getProperties();
		// 如果需要身份认证，则创建一个密码验证器
		if (mailInfo.isValidate()) {
			authenticator = new MyAuthenticator(mailInfo.getUserName(),
					mailInfo.getPassword());
		}
		// 根据邮件会话属性和密码验证器构造一个发送邮件的session
		Session sendMailSession = Session
				.getDefaultInstance(pro, authenticator);
		try {
			// 根据session创建一个邮件消息
			Message mailMessage = new MimeMessage(sendMailSession);
			// 创建邮件发送者地址
			Address from = new InternetAddress(mailInfo.getFromAddress());
			// 设置邮件消息的发送者
			mailMessage.setFrom(from);
			// 创建邮件的接收者地址，并设置到邮件消息中
			String toAddress = mailInfo.getToAddress();
			String[] toAddressArray = toAddress.split(",");
			if(toAddressArray.length > 0) {
				Address[] toAddresses = new InternetAddress[toAddressArray.length];
				for (int i = 0; i < toAddresses.length; i++) {
					toAddresses[i] = new InternetAddress(toAddressArray[i]);
				}
				// Message.RecipientType.TO属性表示接收者的类型为TO
				mailMessage.setRecipients(Message.RecipientType.TO, toAddresses);
				// 设置邮件消息的主题
				mailMessage.setSubject(mailInfo.getSubject());
				// 设置邮件消息发送的时间
				mailMessage.setSentDate(new Date());
				// MiniMultipart类是一个容器类，包含MimeBodyPart类型的对象
				
				Multipart mainPart = new MimeMultipart();
				
				//设置附件
				String fileNames[] = mailInfo.getAttachFileNames();
				if(fileNames != null) {
					MimeBodyPart mbp = null;
					File file = null;
					for(String fileName : fileNames){
						mbp = new MimeBodyPart();
						file = new File(fileName);
						FileDataSource fds = new FileDataSource(file);
						mbp.setDataHandler(new DataHandler(fds));
						mbp.setFileName(MimeUtility.encodeText(file.getName()));//MimeUtility.encodeText()函数是把中文的文件名转换为base64编码,可以用 MimeUtility.decodeText()解码;只有编码后你所发送的邮件才能被其他软件正确解析否则乱码!
						mainPart.addBodyPart(mbp);
					}
				}
				
				// 创建一个包含HTML内容的MimeBodyPart
				BodyPart html = new MimeBodyPart();
				// 设置HTML内容
				html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");
				mainPart.addBodyPart(html);
				
				// 将MiniMultipart对象设置为邮件内容
				mailMessage.setContent(mainPart);   //以html格式发送
				//mailMessage.setText(mailInfo.getContent());  //直接以文本格式发送
				
				// 发送邮件
				Transport.send(mailMessage);
				return true;
			}
		} catch (MessagingException ex) {
			ex.printStackTrace();
			LOG.error("MessagingException={}", ExceptionUtils.getFullStackTrace(ex));
		} catch (UnsupportedEncodingException ex) {
			ex.printStackTrace();
			LOG.error("UnsupportedEncodingException={}", ExceptionUtils.getFullStackTrace(ex));
		} catch (Exception ex) {
			ex.printStackTrace();
			LOG.error("Exception={}", ExceptionUtils.getFullStackTrace(ex));
		}
		return false;
		
	}
}
